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/**
* Copyright (c) 2011 Mia-Software.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Gregoire Dupe (Mia-Software) - Bug 333553 - The user has not to deal with two files to create a facet
* Nicolas Bros (Mia-Software) - Bug 361617 - Deprecation of APIs for the old Facet metamodels
*/
package org.eclipse.papyrus.emf.facet.efacet.core.internal;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import org.eclipse.emf.common.util.TreeIterator;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.papyrus.emf.facet.efacet.EFacetFactory;
import org.eclipse.papyrus.emf.facet.efacet.ParameterValue;
import org.eclipse.papyrus.emf.facet.efacet.Query;
import org.eclipse.papyrus.emf.facet.efacet.QueryContext;
import org.eclipse.papyrus.emf.facet.efacet.QueryResult;
import org.eclipse.papyrus.emf.facet.efacet.core.IEFacetManager;
import org.eclipse.papyrus.emf.facet.efacet.core.exception.QueryException;
import org.eclipse.papyrus.emf.facet.efacet.core.exception.QueryTypeCheckingException;
import org.eclipse.papyrus.emf.facet.efacet.core.internal.query.QueryEvaluatorFactoryRegistry;
import org.eclipse.papyrus.emf.facet.efacet.core.query.IQueryEvaluator;
/** @deprecated replaced by {@link DerivedTypedElementManager} */
@Deprecated
public final class EFacetManager implements IEFacetManager {
/**
* This method looks for a valid evaluator for the query and calls it to perform its
* basicEvaluate
*/
public Object basicEvaluate(final Query query, final EObject eObject,
final List<ParameterValue> parameterValues) throws QueryException {
IQueryEvaluator evaluator = QueryEvaluatorFactoryRegistry.INSTANCE.getEvaluatorFor(query);
evaluator.startEvaluate();
Object result = evaluateAndCheck(query, eObject, parameterValues, evaluator);
evaluator.endEvaluate();
return result;
}
private Object evaluateAndCheck(final Query query, final EObject eObject,
final List<ParameterValue> parameterValues, final IQueryEvaluator evaluator)
throws QueryException {
if (!query.getScope().isInstance(eObject)) {
StringBuffer message = new StringBuffer();
message.append("Wrong context type (for query " + toString() + "): "); //$NON-NLS-1$ //$NON-NLS-2$
message.append(eObject.eClass().getName());
message.append(" found; expected scopes are {"); //$NON-NLS-1$
message.append(query.getScope().getName());
message.append("}"); //$NON-NLS-1$
QueryTypeCheckingException e = new QueryTypeCheckingException(message.toString());
throw e;
}
Object result = evaluator.basicEvaluate(query, eObject, parameterValues);
checkResult(query, result, evaluator.getCheckResultType());
return result;
}
/**
* This method is equivalent to {@link EFacetManager#basicEvaluate(Query, EObject, List)} with
* no query parameters.
*/
public final Object basicEvaluate(final Query query, final EObject eObject)
throws QueryException {
return basicEvaluate(query, eObject, null);
}
/**
* This method is used to evaluate the given {@link Query} on the given {@link EObject} taking
* into consideration some {@link ParameterValue}s
*/
public final QueryResult evaluate(final Query query, final EObject context,
final List<ParameterValue> parameterValues) {
QueryResult queryResult = EFacetFactory.eINSTANCE.createQueryResult();
try {
queryResult.setSource(context);
queryResult.setResult(basicEvaluate(query, context, parameterValues));
} catch (Exception e) {
queryResult.setException(e);
}
return queryResult;
}
/**
* Evaluate the query on a set of models and model elements described by the context parameter.
*
* The query is evaluated on each contextually referred model element and on each element of a
* contextually referred model.
*
* @param queryContext
* The query evaluation context described by a QueryContext instance.
* @param parameterValues
* The query parameter values.
* @return A list of QueryResult (one per evaluation)
* @throws QueryException
*/
public final synchronized List<QueryResult> evaluate(final Query query,
final QueryContext queryContext, final List<ParameterValue> parameterValues)
throws QueryException {
List<QueryResult> resultList = new ArrayList<QueryResult>();
IQueryEvaluator evaluator = QueryEvaluatorFactoryRegistry.INSTANCE.getEvaluatorFor(query);
try {
evaluator.startEvaluate();
for (EObject eObject : queryContext.getSelectedModelElements()) {
QueryResult queryResult = executeQuery(query, parameterValues, eObject, evaluator);
resultList.add(queryResult);
}
for (Resource resource : queryContext.getSelectedModels()) {
TreeIterator<EObject> treeIterator = resource.getAllContents();
while (treeIterator.hasNext()) {
EObject eObject = treeIterator.next();
QueryResult queryResult = executeQuery(query, parameterValues, eObject,
evaluator);
resultList.add(queryResult);
}
}
} finally {
evaluator.endEvaluate();
}
return resultList;
}
/**
* This method is used to evaluate the given {@link Query} on the given {@link EObject}
*/
public final QueryResult evaluate(final Query query, final EObject eObject) {
QueryResult queryResult = evaluate(query, eObject, null);
return queryResult;
}
private final QueryResult executeQuery(final Query query,
final List<ParameterValue> parameterValues, final EObject eObject,
final IQueryEvaluator evaluator) {
QueryResult queryResult = EFacetFactory.eINSTANCE.createQueryResult();
queryResult.setSource(eObject);
try {
Object result = evaluateAndCheck(query, eObject, parameterValues, evaluator);
queryResult.setResult(result);
} catch (QueryException e) {
queryResult.setException(e);
}
return queryResult;
}
private final void checkResult(final Query query, final Object object,
final boolean checkResultType) throws QueryTypeCheckingException {
if (query.getUpperBound() > 1 || query.getUpperBound() == -1) {
if (!(object instanceof Collection<?>)) {
throw new QueryTypeCheckingException(
"A collection is expected as result. The result is: " //$NON-NLS-1$
+ object + " (on " + toString() + ")"); //$NON-NLS-1$ //$NON-NLS-2$
}
for (Object collectionElement : (Collection<?>) object) {
if (checkResultType) {
if (!(query.getEType().isInstance(collectionElement))) {
QueryTypeCheckingException e = new QueryTypeCheckingException(
"Wrong result collection element type (" //$NON-NLS-1$
+ query.getEType().getName() + " is expected): " //$NON-NLS-1$
+ collectionElement + " (on " //$NON-NLS-1$
+ toString() + ")"); //$NON-NLS-1$
throw e;
}
}
}
} else {
if (object instanceof Collection<?>) {
throw new QueryTypeCheckingException("A " //$NON-NLS-1$
+ query.getEType().getName()
+ " instance is expected as result. The result is: " //$NON-NLS-1$
+ object + " (on " + toString() + ")"); //$NON-NLS-1$//$NON-NLS-2$
}
if (checkResultType) {
if (!(query.getEType().isInstance(object))) {
if (object != null) {
throw new QueryTypeCheckingException("Wrong result type: " //$NON-NLS-1$
+ object.getClass().getName()
+ " is returned while " //$NON-NLS-1$
+ query.getEType().getInstanceClassName()
+ " is expected." + " (on " + toString() + ")"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
}
}
}
}
}
}
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